Looking for plugin wordpress for support page

I am new to the world of websites, and I want to create support page (for example like http://support.zippyshare.com/ )

What are the plugins I need? And what plugin are your recommendations.?

Thank you

Are you looking for plugin for WordPress ?

If you search the forum, you will find lots of threads… This is an active subject and being discussed in every 3-4 months.

Yes, I am looking for a plugin that can support me to create a website as I mentioned on the thread.

Can you help me to find it, because I do not know where to start. If you can give 1-2 links to the thread I would be grateful